Last seen: May 14, 2025
James, On your question: Please explain why a higher flow rate is inefficient and undermines control. When a single pump serves multiple zones, ...
James, Your questions cut right to the core of why these discussions matter. One thing I’ve noticed over the years — and this thread really highli...
@jamespa Whether zoning is needed depends on how the occupants use the space, the layout of the house, and how heat losses vary between areas. It’s n...
The biggest mistake in zoning is basing the zones on superficial factors, such as dividing areas by North, South, East, West, or even upstairs and dow...
You’re absolutely right that many past attempts at zoning and hydraulic separation have failed to deliver the desired results. Poor results, short-cyc...
Hi Colin — you’ve clearly thought deeply about the system design, and your questions reflect exactly the kinds of practical challenges that are often ...
Latest Posts
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RE: Buffers, hot water and cooling
It is very unlikely to break, but of course it just mig...
By JamesPa , 53 minutes ago
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@downfield and @toddles, this isn’t in the settings cur...
By Mars , 1 hour ago
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RE: Homely launched for Grant Aerona ASHP control
I haven't bought the Aerona Smart Controller (£700!) bu...
By Prunus , 5 hours ago
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RE: Antifreeze top up for my heat pump - is this a rip off?
For the record, Grant supply ethylene glycol for their ...
By Prunus , 6 hours ago
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RE: Compressor attempts start but fails - Nibe Fighter 2005 8kW
@skyefarmer amazing. Well done!
By Mars , 12 hours ago
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RE: Wood burner with ASHP - direct air?
@sune is ideal to answer this, but I think he's on vaca...
By Mars , 1 day ago
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RE: Say hello and introduce yourself
Hi @topher - you might be interested to see this very r...
By Transparent , 1 day ago
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RE: No-code, plug-and-play monitoring for your heat pump
We've got a svenar heat pump controller en route and lo...
By benson , 2 days ago
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RE: Air source heat pump roll call – what heat pump brand and model do you have?
Ebac 5kw - Monobloc R32. Developed and made in UK - Mit...
By marcinwloch69@gmail.com , 2 days ago
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RE: Is a Valliant Inline 6kW heater a BUS buster?
Just another thought - it might be worth thinking about...
By JamesPa , 3 days ago
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RE: BUS Grant: removal of all other fossil fuel heat sources
@rikiarn - just have a think as to how much it will cos...
By Transparent , 3 days ago
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Don't do much digging around.That's best left to the pr...
By Transparent , 3 days ago
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Hi all, I was wondering if anyone had an idea of how th...
By Wh0am3ye , 3 days ago
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RE: EBAC re-entering the ASHP market in 2023
@toodles confirm i have Ebac 5kw ASAP + homely and it w...
By marcinwloch69@gmail.com , 3 days ago
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RE: Compute heat loss from energy used
@jamespa Ebac must be similar to Mitsubishi as they buy...
By marcinwloch69@gmail.com , 3 days ago
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@pie_eater I have been thinking of adding cooling to my...
By TechnoGeek , 5 days ago
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RE: Victorian Semi Retrofit / Extension ASHP and UFH Advice
Agree, but you may have a hard time convincing them, as...
By JamesPa , 7 days ago
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RE: Seal the Deal: Don't Let Your Heat Pump Leak Energy
Hi - fyi - there's a dead image link in the 'Optimal In...
By seatonian , 1 week ago
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RE: Ripped Off: How UK Homeowners Are Paying Gas Prices for Wind Energy
@chandykris Horses and beggars…. 😉 Toodles.
By Toodles , 1 week ago
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RE: Cleaning up after gas meter removed
@agentgeorge Likewise in the loft space; we have 300mm ...
By Toodles , 1 week ago
